Checking Cargo Ship Compass Error With The Sun | Life At Sea

[@narcisosameloiii1493]

thank you, sir. This is what I've been looking for

[@RjFragile]

Nice explanation Bryan. Good to practice & thinking again. I almost forgot this method due to I quite seaman life. Working on shore now. I’m Thai Seaman.

[@billwareagle7047]

Very interesting Bryan. Seemed complicated at first but after watching really made sense. The details and accuracy are amazing. Great video again!

[@BryanBoyle]

Glad it made sense for you. When we got tested by the USCG for our Third Mate licenses we had to do it all by hand using a paper copy of the nautical almanac which gets even more complicated! Most of us nowadays use programs like the skymate I showed in the video which makes it so much quicker to solve

[@billwareagle7047]

@@BryanBoyle As a retired civil engineer I still like to see and learn how things work. I am still fascinated by technology and enjoy seeing it work, thank you.

[@christianpulido8360]

​@@BryanBoyleIs the earth flat? Or is it a sphere?

[@ZerqPS]

@@christianpulido8360its a sphere - navigator

[@3964GC]

Thanks! So navigation at sea uses true north! In aviation magnetic north is used. We solve for the difference in reverse! TVMDC- “True virgins mean dull company” vs. CDMVT - “Can dead men vote twice”! Haha!

[@zerofox7347]

It seems so 😏

[@yash1152]

TCMDC - lol what the f

[@Bitter-Sailor]

We can't rely on magnetic north because of variation. In open waters its not that big of deal but in navigable waters the difference of a degree can mean disaster.

[@movax20h]

The ship structure and containers really mess up with magnetic field, really interesting. The fact that the loadout of containers make it harder to predict make it even more interesting. Never tough about it, but it makes sense.

[@user-pi2fj6xs6q]

as always Great 👌👍🏼 WCDP thanks and have a safe voyage 😊

[@agulhamagnetica]

Congrats!!! Didactic and informative video! Good horizons for you!!!

[@OCEANCRAFTSMotionGallery]

Great video. Fully watched and liked 21👍

[@turcenoarthurjamil4364]

Capt. You so much better than my college instructor here in the Philippines👌

[@aliceboyle3612]

Wow.... pretty complicated for us non Mariners but great explanation Bryan!

[@foxfootsoldier]

Ha you should see the manual calculation without using software or tables

[@samisonitanalaba5039]

Great videos!

[@Toadcrusher]

Good lesson! Thank You!

[@gablan1468]

Brilliant, thank you!

[@rupjyotihazarika5216]

Wow videos are very informative

[@BilalAhmed-sl3cc]

Like the way you educate sir, thank you

[@johnyarbrough502]

5:07 Great to observe active implementation of advanced technology for reducing glare on magnetic compass 😀

[@yash1152]

can u please explain? i didnt understand what tech is used 😅

[@johnyarbrough502]

@@yash1152 The high tech is a paper towel tube. In another deck tour there was a paper towel tube labeled "Do not throw away" on the console. When there's glare on the compass, looking through the tube eliminates the glare and makes the compass easier to read.

[@daredevil7552]

You will be a good professor sir, your voice and accent is easily to understand bravo!!

[@BryanBoyle]

Thank you!

[@George-hd7tl]

Wish you the best Bryon,S I U. All the way

[@WSmith2024]

Pirates didn't know any better, kept looking at the sun with their sextant. That's why a lot of them would wear eye patches, burned the iris and pupil out.

[@BryanBoyle]

I believe the eye patches were also used to help maintain night vision in one eye

[@shrimpflea]

Totally not true.

[@hansamsterdam2635]

excellent

[@smcdonald9991]

0:47 What watch brand/model is this? Are there watched that are particularly favored by mariners?

[@chuckm6486]

Bryan - You mentioned that this was a 'digital ship'. Are there no paper charts or even sextants on modern ships any more? Or do you (occasionally?) chart your position manually as a 'check' (or back-up) on the digital positioning?

[@BryanBoyle]

We still have the paper charts but they are used for reference only and not used for primary navigation since they no longer receive regular updates. The ECDIS is primary navigation now. Ships are still required to carry sextants though they are rarely used other than to practice taking azimuths or teaching the cadets. Still good to have as a backup though. We still verify our positions manually on the ECDIS using radar ranges and bearings, but the computer automatically plots our GPS position much faster and more frequently than we ever could.

[@turcenoarthurjamil4364]

Capt. is that a 2012 version of the Skymate Pro??? or an updated one?

[@yash1152]

3:15 the refreshing of digital readout/screen

[@marbellaaldana2815]

Do you have a video of how to calculate the azimuth without the program ? (manually)

[@BryanBoyle]

Hi, unfortunately I do not. This would be a good video to make though next time I’m onboard, I’d just need to brush up on doing it manually again since most of us utilize the computer programs once we get out of school.

[@frizzby-x]

How do you know the local time? Which TZ to use?

[@abhiverma9294]

Surprised to see GE being measured in terms of east and west. We usually mention it being either High or Low, Well according to the british and indian merchant marine industry.

[@BryanBoyle]

Interesting. Yea we were always taught east or west in maritime school and that’s how our deviation tables and pilot cards depict it.

[@abhiverma9294]

@@BryanBoyle yeah I was a bit surprised to see that. Just to confirm, Mag CE still gets measured in E and W, it's just a different case with gyro.

[@desneraj5162]

@@abhiverma9294 EXACTLY 💯

[@christianpulido8360]

@@BryanBoyle Azimuths are considered flat earth maps right?

[@fivewestmount9283]

Very informative. Presumably the compass on the bridge wing is a slave repeater so where in the ship does the main gyro live? Down low I'm guessing. And is there a spare for breakdown cover?

[@iafozzac]

There is a video on Chief Makoi's channel that show maintenance on the gyro

[@КонстантинКозлов-ф3ш]

Good video:) So GE seem's to be quite big, yet not so much... Really like those videos, do go on.

[@BryanBoyle]

Glad you enjoy the more technical videos. I will continue you those in the future

[@mohamedeldanasory2960]

You got g. Brg by azimuth How did you get true brg before solving??.

[@jaylecious1541]

Is it the same Procedure as by taking azimuth by the star??

[@jetharlousanico1745]

how important is the sun being used in obtaining errors of the compass

[@travelwithus750]

🤯🤯🤯🤯

[@richardoakley8800]

Its the 21st century and we're still using the sun.. stars and a compass.. Technology is amazing... but its nice to have a plan b

[@mohamedeldanasory2960]

For the first time to know that you can get VAR from gps i know only from paper chart or ecdis Whats the type of that gps please?

[@robertblack7352]

But what if you're carrying containers full of super magnets from China?

[@BryanBoyle]

Haha that may cause some magnetic deviation then!

[@agulhamagnetica]

Well!! Check if the compass will have a residual deviation within 3° in vessels 82,5 m or more and, 4° in vessels less than 82,5 m. (ISO-25862, Annex G)

[@JohnSmith-uy7sv]

Oh yuck. I felt like I was in math class again and trying to learn Calculus. Couldn't even learn Algebra. Very interesting even though I could not understand it. I love my GPS and coordinates and tracking. I think if you would use tracking and when you get to your destination you can zoom out and see how far off the GPS was and how it tracked you.... right? I need to copy those coordinates and see where you were. :-) Weird, no matter how I entered it on google, it would not work this time. I always enter coordinates into google and it shows me. Maybe you are in the Bermuda triangle. :-)

[@stephenpeter854]

I thought that Gyro Error is either low or high. 256.9-255=1.9 low.. since it is low you will add it to your gyro bearing to get your true bearing. Then convert true bearing to compass bearing. Please can you explain why your gyro error is “E” instead of “low”

[@BryanBoyle]

It’s really the same thing. We were taught to label it as east or west though instead of low or high. Low would be just another way to label east, and high is another way to label west. I believe it’s written in Bowditch (American Practical Navigator) as east/west though

[@jackbrundell9186]

In the UK, we’re taught Gyro error is named L/H and Compass error is named E/W

[@Estepona-kx2vr]

I thought that was Myth 😂. Thanks for another informative video Bryan 👍

[@alrenzoreymarip.nacaituna19]

why most navigators uses SUN checking errors of compass?

[@stevenpicanso6801]

Over 1.0, recalculate. If same, recalibrate.

[@giuseppehili496]

How does G. Error is East. Gyro Error can be only low or high.

[@mushypork2132]

yeah, he is confused

[@ArtStoneUS]

What happens when the pole shift happens and magnetic north disappears?

[@Alloneword-cp2xw]

We don't know. Humans were not around the last time it happened.

[@fortnitebestcheats4344]

Im a 2nd year cadet and online classes ain't helping me in my navigation classes

[@BryanBoyle]

Good luck with your classes! hope some of my content is helpful with your training

[@fortnitebestcheats4344]

when calculating for the azimuth, is compass error different from compass deviation?

[@BryanBoyle]

Compass error is compass deviation and variation added together. It is the difference between the compass heading and the true heading.

[@teddyababybear3315]

HOW

[@aldrinjosephrecapinte4297]

Easy way

[@Alloneword-cp2xw]

And all the maths behind the software and calculations are based on the fact the earth is a sphere. Love all these kicks to the teeth for flat heads 🤣

[@sajidequbal4625]

Wearing mask at open sea strange

[@rowlsrow9388]

Tv makes dumb cadets

[@jamesa7506]

Hahaha! CDMVT? Only when they vote liberal!

[@_.6674]

For gyro error you cannot use Easy or West, you should use high or low

[@frazierinsuranceagency]

Oh yuck. I felt like I was in math class again and trying to learn Calculus. Couldn't even learn Algebra. Very interesting even though I could not understand it. I love my GPS and coordinates and tracking. I think if you would use tracking and when you get to your destination you can zoom out and see how far off the GPS was and how it tracked you.... right? I need to copy those coordinates and see where you were. :-) Weird, no matter how I entered it on google, it would not work this time. I always enter coordinates into google and it shows me. Maybe you are in the Bermuda triangle. :-)